有机/铁磁复合结构薄膜的制备及其界面性质的研究  

Preparation and modulation of interfacial properties of organic/ferromagnetic composite structure films

作　　者：余昌昊 徐家伟 程冲 杨昌平[1,2] 徐玲芳 王瑞龙[1] 肖海波 梁世恒[1] YU Changhao;Xu Jiawei;CHENG Chong;YANG Changping;XU Lingfang;WANG Ruilong;XIAO Haibo;LIANG Shiheng(Faculty of Physics and Electronic Science, Hubei University, Wuhan 430062, China;Faculty of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China)

机构地区：[1]湖北大学物理与电子科学学院,湖北武汉430062 [2]太原科技大学材料科学与工程学院,山西太原030024

出　　处：《湖北大学学报（自然科学版）》2021年第6期606-611,660,共7页Journal of Hubei University：Natural Science

基　　金：湖北省自然科学基金(ZRMS2019000942)资助。

摘　　要：我们在制备PVDF有机薄膜与Co磁性金属形成的有机/磁性金属复合薄膜结构时,发现当在不同条件下生长Co时,PVDF/Co界面会产生不同程度的金属颗粒的渗透现象,进而导致不同界面性质会对器件的电学输运性质产生影响.为了更好地表征这种复合结构的界面形貌,我们通过对PVDF有机薄膜、PVDF/Co复合薄膜、以及对PVDF/Co复合薄膜刻蚀掉Co后的薄膜三种结构的表面进行表征.对比发现PVDF在Co生长后,Co颗粒会向PVDF薄膜层产生一定的渗透.此后,我们进一步研究了Co不同渗透程度下的ITO/PVDF/Co器件的电输运行为.通过在不同温度下进行电输运测量,我们发现Co的渗透使得该结构的电阻产生显著性的减小,且电阻对温度的依赖性也显著降低.In the preparation of organic/magnetic structure films formed by PVDF organic film and Co magnetic metal,we found that when Co was grown under different conditions,different degrees of penetration of metal particles would be formed at the PVDF/Co interface,and different interface properties would affect the electrical transport properties of the device.In order to better characterize the interfacial morphology of the composite structure,we characterized the surface of the three structures:the surface of PVDF organic film,the PVDF/Co composite film,and the Co/PVDF film surface after Co was etched away.By comparison,we found that when Co grew,Co particles produced a certain penetration of the PVDF film.Thereafter,we further studied the electrical transmission behavior of ITO/PVDF/Co devices with different degrees of Co penetration.Though the measurement of electrical transport at different temperatures,we found that the penetration of Co caused a significant reduction in the resistance of the structure,and the temperature dependence of the resistance was also significantly reduced.

关 键 词：有机 界面 渗透 PVDF 电输运 电阻 

分 类 号：TB383[一般工业技术—材料科学与工程]